Accuracy is important in Traveller. As it is a Hard Space Opera, it
is grounded in the real world as much as it does have the elements of
the fantastical. I play with real world science in mind; true, handwaves
are necessary to explain some things but again grounding it in the real
world keeps the game authentic. Notwithstanding, RPGs are power trips
(even low powered ones like Traveller) for the ego, therefore, the
relationship between fun and accuracy is that fun should trump accuracy
if the fun is accurate. Similarly, when it comes to special effects,
everyone knows that players cannot hear the lasers or ships do not go:
“w-whosh-sh-sh” but these are effects that people expect and help form
the mental images for enjoyable play. Therefore, they certainly should
be used in the course of play, because it adds to the excitement and
thrill in the adventure even if it is not accurate.